<template>
  <div>
  <el-breadcrumb separator-class="el-icon-arrow-right">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>权限管理</el-breadcrumb-item>
  <el-breadcrumb-item>角色列表</el-breadcrumb-item>
</el-breadcrumb>

<el-card>
  <el-row>
    <el-col>
      <el-button type="primary">添加角色</el-button>
    </el-col>
  </el-row>

  <el-table :data="rolesList" stripe border>
    <el-table-column type="expand">
      <template slot-scope="scope">
         <el-row  :class="['bdbottom',i1===0?'bdtop':'','vcenter']"  v-for="(item1,i1) in scope.row.children" :key="item1.id">
           <!-- 一级权限 -->
           <el-col :span="5">
           <el-tag closable @close="removeRightById(scope.row,item1.id)">{{item1.authName}}</el-tag>
           <i class="el-icon-caret-right"></i>
           </el-col>

           <el-col :span="19">
             <!-- 二级权限 -->
           <el-row  :class="[i2===0?'':'bdtop','vcenter']"  v-for="(item2,i2) in item1.children" :key="item2.id">
           <el-col :span="6">
           <el-tag type="success" closable @close="removeRightById(scope.row,item2.id)">{{item2.authName}}</el-tag>
           <i class="el-icon-caret-right"></i>
           </el-col>
           <!-- 三级权限 -->
           <el-col  :span="18" >
             <el-tag type="warning" v-for="(item3) in item2.children" :key="item3.id" closable @close="removeRightById(scope.row,item3.id)">{{item3.authName}}</el-tag>
           </el-col>
         </el-row>
           </el-col>
         </el-row>
      </template>
    </el-table-column>
  <el-table-column type="index"></el-table-column>
  <el-table-column label="角色名称" prop="roleName"></el-table-column>
  <el-table-column label="角色描述" prop="roleDesc"></el-table-column>

  <el-table-column label="操作"  width="300px">
  <template  slot-scope="scope"><el-button type="primary" icon="el-icon-edit" size="mini"  @click="editDiglog(scope.row.id)">编辑</el-button>
   <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteRole(scope.row.id)">删除</el-button>
    <el-tooltip  effect="dark" content="分配权限" placement="top" :enterable="false">
      <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRightDialog(scope.row)">分配权限</el-button>
    </el-tooltip>
</template>
  </el-table-column>
</el-table>
</el-card>
<!-- 分配权限对话框 -->
<el-dialog title="分配权限" :visible.sync="setRightDialogVisible" width="50%" @close="setRightDialogClosed">
  <el-tree :data="rightslist" :props="treeProps" show-checkbox node-key="id" default-expand-all
  :default-checked-keys="defKeys" ref="treeRef"></el-tree>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRightDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="allotRights">确 定</el-button>
  </span>
</el-dialog>

 <el-dialog title="修改" :visible.sync="editDialogVisible" width="50%" >
  <el-form  :rules="editRules" ref="editFormRef" :model="editForm" label-width="80px">
  <el-form-item label="角色名称" prop="roleName"><el-input v-model="editForm.roleName"></el-input></el-form-item>
  <el-form-item label="角色描述" ><el-input v-model="editForm.roleDesc"></el-input>
  </el-form-item>
  </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="edit">确 定</el-button>
  </span>

</el-dialog>
</div>
</template>
<script>
export default {
  data () {
    return {
      rolesList: [],
      setRightDialogVisible: false,
      rightslist: [],
      treeProps: {
        label: 'authName',
        children: 'children'
      },
      // 默认打开的tree的ID值
      defKeys: [],
      // 当前即将分配权限的角色idid
      roleId: '',
      editDialogVisible: false,
      editForm: {
        roleName: '',
        roleDesc: ''
      },
      editRules: {
        roleName: [
          { required: true, trigger: 'blur' }
        ]
      }

    }
  },
  created () {
    this.getRolesList()
  },
  methods: {
    async getRolesList () {
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.eror('获取权限列表失败！')
      }
      this.rolesList = res.data
    },
    async removeRightById (role, rightId) {
      const confirmResult = await this.$confirm('此操作将永久删除该权限, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete(`roles/${role.id}/rights/${rightId}`)
      if (res.meta.status !== 200) {
        return this.$message.error('删除权限失败！')
      }
      this.$message.success('删除权限成功！')
      role.children = res.data
    },
    async showSetRightDialog (role) {
      this.roleId = role.id
      const { data: res } = await this.$http.get('rights/tree')
      if (res.meta.status !== 200) {
        return this.$message.error('查询权限数据失败！')
      }
      this.rightslist = res.data
      this.getdefKeys(role, this.defKeys)
      this.setRightDialogVisible = true
    },
    // 通过递归 获取角色下所有三级权限的id 并保存到defKeys中
    getdefKeys (node, arr) {
      if (!node.children) {
        return arr.push(node.id)
      }
      node.children.forEach(element => {
        this.getdefKeys(element, arr)
      })
    },
    setRightDialogClosed () {
      this.defKeys = []
    },
    // 点击确定 分配权限
    async allotRights () {
      const keys = [...this.$refs.treeRef.getCheckedKeys(), ...this.$refs.treeRef.getHalfCheckedKeys()]
      const idStr = keys.join(',')
      const { data: res } = await this.$http.post(
        `roles/${this.roleId}/rights`,
        { rids: idStr }
      )

      if (res.meta.status !== 200) {
        return this.$message.error('分配权限失败！')
      }

      this.$message.success('分配权限成功！')
      this.getRolesList()
      this.setRightDialogVisible = false
    },
    async editDiglog (id) {
      const { data: res } = await this.$http.get('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.eror('获取角色失败！')
      }
      this.editForm = res.data
      console.log(this.editForm)
      this.editDialogVisible = true
    },
    edit () {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put('roles/' + this.editForm.roleId, {
          roleName: this.editForm.roleName,
          roleDesc: this.editForm.roleDesc
        })
        if (res.meta.status !== 200) {
          return this.$message.error('修改角色失败！')
        }
        this.$message.success('修改角色成功！')
        this.editDialogVisible = false
        this.getRolesList()
      })
    },
    async deleteRole (id) {
      const confirmResult = await this.$confirm('此操作将永久删除该角色, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)

      if (confirmResult !== 'confirm') {
        return this.$message.info('已取消删除')
      }
      const { data: res } = await this.$http.delete('roles/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除角色失败！')
      }
      this.$message.success('删除角色成功！')
      this.getRolesList()
    }

  }
}
</script>
<style lang="less" scoped>
.el-tag{
  margin: 7px;
}
.bdtop{
  border-top:1px solid #eee
}
.bdbottom{
  border-bottom:1px solid #eee
}
.vcenter{
  display: flex;
  align-items: center
}

</style>
